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501-16-6

501-16-6 Structure

501-16-6 Structure
IdentificationMore
[Name]

CAFFEIC ACID
[CAS]

501-16-6
[Synonyms]

3-(3,4-DIHYDROXYPHENYL)-2-PROPENOIC ACID
3-(3,4-DIHYDROXYPHENYL)ACRYLIC ACID
3,4-DIHYDROXYCINNAMIC ACID
AKOS B004050
CAFFEIC ACID
LABOTEST-BB LT00233168
RARECHEM BK HC T335
TIMTEC-BB SBB006475
(E)-3-(3,4-dihydroxyphenyl)prop-2-enoic acid
3,4-Dihydroxy-trans-cinnamate
[EINECS(EC#)]

206-361-2
[Molecular Formula]

C9H8O4
[MDL Number]

MFCD00004392
[Molecular Weight]

180.16
[MOL File]

501-16-6.mol
Chemical PropertiesBack Directory
[Melting point ]

211-213 °C (dec.)(lit.)
[Boiling point ]

416.8±35.0 °C(Predicted)
[density ]

1.478±0.06 g/cm3(Predicted)
[storage temp. ]

Storage temp. 2-8°C
[solubility ]

ethanol: 50 mg/mL
[form ]

powder
[pka]

4.58±0.10(Predicted)
[color ]

yellow to tan
[BRN ]

1954563
[Major Application]

food and beverages
[InChI]

1S/C9H8O4/c10-7-3-1-6(5-8(7)11)2-4-9(12)13/h1-5,10-11H,(H,12,13)/b4-2+
[InChIKey]

QAIPRVGONGVQAS-DUXPYHPUSA-N
[SMILES]

OC(=O)\C=C\c1ccc(O)c(O)c1
[LogP]

1.420 (est)
[CAS DataBase Reference]

501-16-6(CAS DataBase Reference)
Questions And AnswerBack Directory
[Uses]

trans-Caffeic Acid is a useful synthetic intermediate. It was used as a reactant to synthesize N-caffeoylphenalkylamide derivatives as bacterial efflux pump inhibitors. It is also used to prepare caffeic acid phenethyl ester analogs with antitumor structures.
Safety DataBack Directory
[Hazard Codes ]

Xn
[Risk Statements ]

R36/37/38:Irritating to eyes, respiratory system and skin .
R40:Limited evidence of a carcinogenic effect.
R63:Possible risk of harm to the unborn child.
R68:Possible risk of irreversible effects.
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
[WGK Germany ]

3
[RTECS ]

GD8950000
[Storage Class]

11 - Combustible Solids
[Hazard Classifications]

Carc. 2
Hazard InformationBack Directory
[Chemical Properties]

Pale yellow crystalline powder
[Definition]

ChEBI: Caffeic acid is a hydroxycinnamic acid that is cinnamic acid in which the phenyl ring is substituted by hydroxy groups at positions 3 and 4. It exists in cis and trans forms; the latter is the more common. It has a role as a plant metabolite, an EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor, an EC 2.5.1.18 (glutathione transferase) inhibitor, an EC 1.13.11.34 (arachidonate 5-lipoxygenase) inhibitor, an antioxidant and an EC 3.5.1.98 (histone deacetylase) inhibitor. It is a hydroxycinnamic acid and a member of catechols.
[General Description]

This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities). The exact value can be found on the certificate. Produced by PhytoLab GmbH & Co. KG
[IC 50]

Microbial Metabolite
Spectrum DetailBack Directory
[Spectrum Detail]

trans-caffeic acid(501-16-6)1HNMR
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